Window latch and guard



March 22, 1927. 1,621,740

I AA.PAVOLA WINDOW LATCH AND GUARD Filed April 27, 1925 2 Sheets-Sheet 1 lNVENTOR March 22,1927.

A. PAVOLA WINDOW LATCH AND GUARD Filed April 2 1925 2 heets-Sheet 2 llzl iNVENTOR QlSwwa Qmnlu/ msy Patented Mar. 22, 1927 UNITED ALFRED PAVOLA, OF NEW YORK, N. Y.

WINDOJV LATCH AND GUARD.

Application filed April 27, 1925. Serial No. 26,106.

This invention relates to an improved appliance for *asement windows disclosed in my Patent No. 1,471,525, issued October 23, 1923.

My present invention has for its object primarily to provide awindow latch and guard designed especially for use on the casement windows of buildings for releasably locking the sashes or doors of the windows and. also to protect the window when closed against the passage of wind, rain or snow during inclement weather. The invention consists essentially of a guard element which is provided on the sill of the frame ofa casement window under a form of the hinged sashes thereof having in their lower edges registered grooves, and this guard element is adj'ustabl-y movable into and out of the grooves for locking the lower ends of the sashes as well as making the sashes storm proof by closing the space between the sashes and the sill. On the upper part of the frame of the window is a spring catch for releasably locking the upper ends of the sashes when closed. On one of the sashes of the window is means preferably including two operating bars which are movable in opposite directions toward each other when the sashes are closed for raising the guard element into the grooves to lock the sashes, and the operating bars are reversely movable for causing one of the bars to release the catch and for causing the other bar to move the guard element out of the grooves of the sashes which in turn will be unlocked.

A further object of the invention is to provide a lock and guard of simple, efficient and durable construction which may be made in appropriate sizes and shapes for suitable forms of casement windows.

With these and other objects in view, the invention will be hereinafter more fully explained with reference to the accompanying drawings forming. a part of this specification in which similar characters of reference indicate corresponding parts in all'the views, and will then be pointed out in the claims at the end of the description.

In the drawings, Figure 1 is an elevation of a casement window with its sashes or doors in open positions, and having one form of my improved latch and guard applied thereto.

Fig. 2 is an elevation of the window with the sashes in closed positions.

Fig. 3 is an enlarged sectional View, partly broken away, taken on the line 3-3 of Fig. 2 and which shows the device in position for fastening the sashes of the window.

Fig. 4; is a similar view showing the device in unlocked position.

Fig. 5 is an enlarged fragmentary View, partly broken away, showing the lower por tion of the window illustrated in Fig. 4 with one of the sashes in, partly open position.

Fig. 6 is an enlarged fragmentary sectional'view taken on the line 66 of Fig. 2, and

Fig. 7 is an elevation, partly fragmentary, of the interior of the mechanism of the fastener used in the device.

The device or latch and guard has a guard element 10 which is provided on the inner edge part of the upper face of the sill A of the frame B of the easement window C of a building, and to the stiles D and E of the frame B are hinged, at F and G, two sashes or doors H and I having lengthwise of their lower edges registered grooves J and K. The frame B of the window has an upper bar L which is supported on the stiles D and E, and the sashes H and I are adapted to be swung to open and closed positions within the frame B as is usual with windows of this class with the side edge of the sash I opposite to its hinges G being formed to removably interlit the opposed side edge of the sash H so that when the sashes are in closed position their faces will be flush with each other.

The guard element 10 has a member or bar 11 of substantially an inverted U-shape. The U-shape'd bar 11 is of a length so that it extends the entire widths of the hinged sashes H and I, and on the lengthwise edge of one of the arms or legs of this U-shapcd bar is a rightangularly disposed plate, as 12, which is suitably secured, as at '13, to the upper face of the stile A of the window frame so that the bar is in an inverted position directly under the grooves J and K of the sashes. The guard element 10 also has a sec- 0nd member or bar 14 of substantially an inverted U-shape movably straddling the U- shaped bar 11, and one of the arms of the U-shaped bar 14; is wider than the other arm of the bar as well as being bent upwardly and inwardly, as at 15, between the arms of the U-shaped bar 11. The bar 14: is of a similar length to the length of the bar 11, and these bars are relatively proportioned to allow the U-shaped bar l t to be adjusted upwardly and downwardly on the U-shaped bar 11 for being moved into and out of the grooves J and K of the sashes of the window. The bars 11 and 14 are also proportioned that when the bar 14 is raised for being seated in the grooves of the sashes the lower ends of the sashes will be locked and the space between the sill of the window and the sashes will be closed against passage of wind, rain or snow, and when the bar 14 is lowered on the bar 11 the sashes will be free for being swung to open and closed positions. The lower edge of the sash I adjacent the sash H may be cut-out, as at M, and project ing from the central part of the bar 14 into the cut-out M is a socket, as 16, having an upwardly protruding lug or stop, as 17.

On the central part of the bar L of the frame of the window is a catch, as 18, of a form preferably having a rigid plate 19 with one of its ends secured, at 20, to the bar L of the window frame so that the plate 19 projects over the part of the upper edge of the sash I adjacent the sash H. In the central part of the plate 19 is an opening 21, and to the free outer end of the plate 19 is fastened, at 22, one end of a spring strip 23. The other end of the spring strip 23 is bent angularly upward, at 24, and this bent end is movably disposed through the opening 21 of the plate 19. The spring strip 23 is tensioned so that its central part is normally spaced below the plate 19 to provide a head, as25, which is positioned so that the sash I will be engaged by the head,

' as shown in Figs. 2 and 3, for locking the upper parts of the sashes when closed, and by forcing the head 25 of the catch upwardly the upper parts of the sashes will be unlocked.

In order to operate the guard element 10 and the catch 18 for locking and unlocking the sashes when closed two bars, as 26, 27, are provided. The operating bars 26, 27 are arranged in vertical alinement on the outer face of the sash I between the catch 18 and the socket 16 of the guard element 10. The opposed ends of the locking bars 26, 27 are spaced apart, as shown in Fig. 7, for being moved in opposite directions toward and from each other, and these operating bars are of such lengths that when moved from each other the lower end of the bar 26 will move slightly below the sashes and the upper end of the upper bar 27 will engage and force the spring head 25 of the catch 18 toward the plate 19 of the catch to allow the sashes to be swung to open positions. Protruding from the lower part of the locking bar 26 into the cut-out M of the sash I is a pin 28 for being removably inserted in the socket 16 and for engaging the stop 17 of the guard element 10. The bar 26 is movably held on the sash I by a strap, as 29, and the bar 27 is also movably held on the sash I by a strap, as 30.

Serving as means to permit the operating bars 26, 27 to be manually operated as well as allowing the central parts of the sashes to be fastened together and unfastened, a look as 31 is provided. The lock 31 has a casing 32 which may be of an oval shape having a front wall or plate 33 with a peripheral wall 34 protruding from one of its faces, and extending laterally from the central part of the casing is a hollow or tubular extension member, as 35, having an end wall, as 36, with an opening 37 therein. In the lower end of the wall 34 of the casing is an opening 38, and in the upper end of the wall of the casing is an opening 39. The casing 32 is bolted, as at 40, or otherwise. fastened on the sash I with the free edge of the wall 34 in contact with the sash I and with the bars 26 and 27 movably disposed respectively through the openings 38 and 39 of the side wall of the casing. The casing is also arranged with the free end of the extension member 35 projecting beyond the edge of the sash I opposed to the sash II. On the sash H in proximity to and on alinement with the extension member 35 of the lock casing 32 is a socket, as 41. In an opening in the front plate 33 of the casing and midway between the spaced ends of the bars 26, 27 is a rotatable bolt or stud 42, and on this stud exteriorly of the casing is a knob or handle 43 for allowing the stud to be manually rotated. On the part of the stud within the casing is a fiat disk 44 for being revolved with the rotation of the stud, and slidably movable. inwardly and outwardly of the casing 32 through the opening 37 ofv the extension member 35 is a lock bolt 45 having a stem 46 with a beveled head, as 47, on one of its ends. The head 47 of the lock bolt 45 may be larger than the stem 46, and this head is seated in the opening 37 of the extension member 35 for being moved into and out of the socket 41 of the sash H for fastening and unfastening the central parts of the sashes when closed. The end of the stem 46 of the lock bolt within the casing has an angular arm, as 48, disposed clownwardly. The part of the stem 46 in prox1mity to the arm 48 has an enlarged part 49 with a slot 50 extending lengthwise of the stem, and this slotted enlarged portion is slidably movable on the bolt 42. The space between the slotted enlarged part 49 and the arm 48 of the lock bolt provides a notch, as 51. The lock bolt 45 is yieldingly held in normal position with its head 47 disposed outwardly of the opening 37 of the extension member 35 of the casing 32 by a spring, as 52, having one of its ends abutting against the head of the bolt 45 with its other end pressing against a lug 53 which protrudes interiorly of the casing from its front plate or wall. Protruding from part of the disk 44 in spaced relation to the bolt 42 is a pin 54 against which the forward part of the slotted enlarged portion 49 of the stem 46 of the bolt 45 normally contacts so that with the rotation of the disk 44 the pin 54 will move into the notch 51 of the bolt 45 for causing the bolt to be moved inwardly of the casing 32 against the tension of the spring 52. Extending eccentrically from opposite parts of the disk 44 are two pins 55, 56 which are normally positioned on alinement with the bars 26, 27. To the pin 55 is pivoted one end of a curved link, as 57, having on its other end a pin, as 58, which is rotatably disposed through a hole 59 provided in the end of the bar 27 disposed within the casing 32. To the pin 56 is pivoted one end of a curved link, as 60, having on its other end a pin, as 61, which is rotatably disposed through a hole 62 provided in the end of the bar 26 disposed within the casing 32.

When the sashes of the window are partly closed the pin 28 of the bar 26 will contact with the stop 17 of the socket 16 of the guard element 10, as shown in Fig. 5, for prev-enting the sashes from entirely closing. By partly turning the knob 43' of the catch 31 the bar 26 will move downwardly to enable closing of the sashes in the frame of the window, at which time the pin 28 will be inserted in the socket 16. Nith the closing of the sash-es the head 47 of the lock bolt 45 will move into the socket 41 of the sash H, and the upper end of the sash I will move under the spring head 25 of the catch 18 for releasably locking the central and upper parts of the sashes together. 13y partly turning the knob 43 accordingly the bolt 42 will partly revolve the disk 44 for moving the links 57, 60 to cause the bars 26, 27 to be moved toward each other, and with the upward movement of the bar 26 its pin 28 will move the socket 17 for moving the U-shaped bar 14 of the guard element 10 into the registered slots K of the sashes. The lower parts of the sashes will then be releasably locked. The disk 44 during this step in the operation of the lock 31 will not revolve sufficient distance to cause its pin 54 to move the lock bolt 45 for disengaging the head 47 of this bolt from the socket 41 of the sash H. When it is desired to unlock the sashes the knob 43 is reversely turned, and the bolt 42 with the disk 44 will be likewise rotated. The pin 54 of the disk will then move into the notch 51 of the stem 46 of the lock bolt 45. The pin 54 will engage the arm 48 of the bolt 45 for causing this bolt to move inwardly of the casing 32 against the tension of the spring 52 which in turn will withdraw the head 47 of the bolt from the socket 41 of the sash H for unlocking the lock 31. With the operation of these parts of the lock 31 the disk 54 will cause movement of the links 57, 60 for moving the bars 26, 27 from each other. The lock bar 26 with its pin 28 will cause the socket 17 to move downwardly for moving the U- shaped bar 14 of the guard element 10 out of the registered slots K of the sashes to unlock the lower parts of the sashes, and the bar 27 with its upward movement will engage the spring head 25 of the catch 18 for forcing the head yieldingly toward the fixed plate 19 of the catch. The upper parts of the sashes will then be unlocked, and the sashes may be swung to open positions.

In the foregoing description, I have embodied the preferred form of my invention, but I do not wish to be understood as limiting myself thereto, as I am aware that modifications may be made therein without departing from the principle or sacrificing any of the advantages of this invention, therefore, I reserve to myself the right to make such changes as fairly fall within the scope thereof.

Having thus described my invention, I claim as new and desire to secure by Letters Patent4- 1. The combination with the hinged sashes of a casement window, having in their lower edges registered grooves and a guard ele ment on the sill of the frame of the window for being adjusted into and out of the grooves of the sashes, of a socket projecting from the guard element, a pin protruding from a bar for removable insertion in the socket of the guard element, and means operative to move the bar when the sashes are closed and when the pin is seated in the socket of the guard element for raising the socket and moving the guard element into the grooves of the sashes to fasten the sashes and said means being operative to reversely move said parts for releasing the sashes.

2. The combination with the hinged sashes of a casement window, having in their lower edges registered grooves and a guard element on the sill of the frame of the window for being adjusted into and out of the grooves of the sashes, of a socket projecting from the guard element, yielding means on the upper part of the frame of the window for releasably locking the sashes when closed, two bars movable in opposite directions upwardly and downwardly on one of the sashes of the window, a pin protruding from the lower bar for removable insertion in the socket of the guard element, and means operative to simultaneously move both bars toward each other when the sashes are closed and locked by the yielding means and when the pin of the lower bar is seated in the socket of the guard element for raising the socket and moving the guard element into the grooves of the sashes to fasten the sashes and said means being operative to reversely move said parts for releasing the sashes.

illl) 3. The combination with the hinged sashes of a casement window, having in their lower edges register-ed grooves, of a fixed bar of substantially an inverted U-shape on the sill of the frame of the window, a second approximately U-shaped bar movably interfitting the other U-shaped bar for being adjusted into and out of the grooves of the sashes, a socket projecting from the movable U shaped bar, an operating bar movable upwardly and downwardly on one of the sashes of the window, a pin protruding from the operating bar for removable insertion in the socket of the movable U-shaped bar,

and means manually operative to move the operating bar when the sashes are closed and when the pin of the operating bar is seated in the socket of the movable U-shaped bar for raising the socket and moving the U-shaped bar into the grooves of the sashes to lock the sashes and said means being operative to reversely move said parts for releasing the sashes.

4. The combination with the hinged sashes of a casement window, having in their lower edges registered grooves, of a fixed bar of substantially an inverted U-shape on the sill of the frame of the window and a second approximately U-shaped bar movably interfitting the other Ushaped bar for being adjusted into and out of the grooves of the sashes, a socket projecting from the movable U-shaped bar, yielding means on the upper part of the frame of the window for releasably locking the sashes when closed, two operating bars movable in opposite directions upwardly and downwardly on one of the sashes of the window, a pin protruding from the lower operating bar for removable insertion in the socket of the movable U- shaped bar, and means manually operative to simultaneously move the operating bars toward each other when the sashes are closed and locked by the yielding means and when the pin of the lower operating bar is seated in the socket of the movable U-shaped bar for raising the socket and moving the U- shaped bar into the grooves of the sashes to lock the sashes and said means being operative to reversely move said parts for releasing the sashes.

5. The combination with the hinged sashes of a casement window, having in their lower edges registered grooves, of a movable guard element on the sill of the frame of the window for being adjusted into and out of the grooves of the sashes, and means manually operative to move the guard element when the sashes are closed into the grooves of the sashes and said means being operative to reversely move the guard element out of the grooves of the sashes.

6. The combination with the hinged sashes of a casement window, having in their lower edges registered grooves, of a movable guard element on the sill of the frame of the window, yielding means on the upper part of the frame of the window for releasably looking the sashes when closed, and means manually operative to move the guard element when the sashes are closed into the grooves of the sashes to lock the sashes and said means being operative to reverselv move the guard element out of the grooves of the sashes and to release the yielding means for unlocking the sashes.

This specification signed this 25th day of April A. D. 1925.

ALFRED PAVOLA. 

